#!/usr/bin/env python

# Copyright (c) 2009, Purdue University
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"""Remove acls for Roster"""


__copyright__ = 'Copyright (C) 2009, Purdue University'
__license__ = 'BSD'
__version__ = '0.17'


import sys

from roster_user_tools import cli_common_lib
from roster_user_tools import roster_client_lib
from roster_user_tools.data_flags import Acl
from roster_user_tools.action_flags import Remove


class Args(Remove, Acl):
  pass

def main(args):
  """Collects command line arguments.

  Inputs:
    args: list of arguments from the command line
  """
  command = 'remove'
  if( args and not args[0].startswith('-') ):
    command = args.pop(0)
  usage = ('\n'
           '\n'
           'To remove acls:\n'
           '\t%s -a <acl-name> --cidr-block <cidr-block>\n'
           '\n'
           'All arguments are required.\n' % sys.argv[0])
  args_instance = Args(command, ['remove'], args, usage)
  options = args_instance.options

  try:
    cli_common_lib_instance = cli_common_lib.CliCommonLib(options)
  except cli_common_lib.ArgumentError, error:
    print 'ERROR: %s' % error
    sys.exit(1)

  if( options.acl and not options.cidr_block ):
    if( options.force ):
      roster_client_lib.RunFunction(
          u'RemoveACL', options.username, credfile=options.credfile,
          credstring=options.credstring, server_name=options.server,
          args=[options.acl])
      if( not options.quiet ):
        print 'REMOVED ACL: acl: %s' % options.acl
    else:
      cli_common_lib.DnsError('Must use --force to delete entire ACL.', 1)

  else:
    core_return = roster_client_lib.RunFunction(
        u'RemoveCIDRBlockFromACL', options.username, credfile=options.credfile,
        credstring=options.credstring, server_name=options.server,
        args=[options.acl, options.cidr_block])['core_return']
    if( not core_return ):
      cli_common_lib.DnsError(
          'No acl found with acl: %s cidr_block: %s' % (
              options.acl, options.cidr_block))
    elif( not options.quiet ):
      print 'REMOVED ACL: acl: %s cidr_block: %s' % (
          options.acl, options.cidr_block)


if __name__ == "__main__":
  main(sys.argv[1:])
